//
//  Person.m
//  02-ClassAndObject
//
//  Created by dllo on 16/7/5.
//  Copyright © 2016年 dllo. All rights reserved.
//

#import "Person.h"

@implementation Person
- (void)sleep:(NSInteger)time {
    //NSLog属于C语言的函数
    NSLog(@"这个人睡了多久%ld",time);
}
- (void)setName:(NSString *)name {
    if(_name != name) {
        [_name release];
        _name = [name retain];
    }
   
}
- (NSString *)name {
    return [[_name retain]autorelease];
}
//命名规范
//实现大括号前,要加空格/回车
//无论调用那种初始化方法都会调用的方法叫做指派初始化方法
- (instancetype)initWithName:(NSString *)name
                         age:(NSInteger)age {
    self = [super init];
    if (self) {
        _name = name;
        _age = age;
    }
    return self;
}
- (instancetype)initWithName:(NSString *)name {
    return [self initWithName:name age:0];
}
- (instancetype)initWithAge:(NSInteger)age {
    return [self initWithName:nil age:age];
}
+ (instancetype)personWithName:(NSString *)name
                           age:(NSInteger)age {
    return [[[Person alloc]initWithName:name age:age]autorelease];
}
@end
